1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
allsm [11]
3 years ago
5

A rock is thrown upward from the surface of Mars with an initial velocity of 50 feet per second. The height of a rock can be mod

eled by the: h(t)=-6.5t^2+50th(t)=−6.5t 2 +50t. How long does it take the rock to fall back to the surface of Mars? Round to two decimal places.
Mathematics
1 answer:
valentinak56 [21]3 years ago
8 0

Answer:

<u>9.23secs</u>

Step-by-step explanation:

Given the height of the rock modeled by the equation;

h(t)=-6.5t^2+50t

The rock falls back to the surface of the Mars at when the height is zero i.e h(t) = 0

Substitute into the formula and get the time t

h(t)=-6.5t^2+50t

0 = -6.5t^2+50t

6.5t^2 = 50t

6.5t = 50

t = 50/6.5

t = 9.23secs

Hence the rock fall back to the surface of the Mars after <u>9.23secs</u>

You might be interested in
I WILL GIVE BRAINIEST ANSWER! JUST PLEASE HELP ME
koban [17]

Answer:

The answer is C

Step-by-step explanation:

7 0
3 years ago
Between which two square roots of integers could you find π
LUCKY_DIMON [66]
Hello.

Since 3 < pi < 4, 
√9 < pi √16 

In fact, since pi^2 = 9.86, 

<span>√9 < pi < √10. 

Which means the you</span><span> can find pi between square roots √9 and √10.
</span>
Have a nice day
5 0
3 years ago
What is the total of roses white and red roses if we have five red roses and 2 white roses please help me
Lilit [14]
Both the red and white roses would make up seven roses
5 0
3 years ago
The points (1, 5) and (0, –2) fall on a particular line. What is its equation in slope-intercept form?
Hunter-Best [27]

Answer:

y = 7x - 2

Step-by-step explanation:

first we need the slope of the line.

the slope is expressed a the ratio (y coordinate change / x coordinate change) when we go from one point on the line to another.

so, let's say we go from (0, -2) to (1, 5), we see

x changes by +1 (from 0 to 1).

y changes by +7 (from -2 to 5)

so the slope is +7/+1 = 7

the slope-intercept form is in general

y = ax + b

a being the slope, b being the y-intercept (the y-value for x = 0).

the point (0, -2) gives us therefore the y-intercept directly : -2.

by using the already established slope and the point (0, -2) for the y-intercept the equation of our line is

y = 7x - 2

8 0
2 years ago
1 Aduceti la o forma mai simpla
inysia [295]
Si bi almota con te illama
7 0
3 years ago
Other questions:
  • Find the area of the figure. Round it to the nearest hundredth
    13·1 answer
  • Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the x-axis. y=−3x+6,
    13·1 answer
  • Help ASAP plz<br> !!!!!!!!!!!!!
    8·2 answers
  • What is equivalent to 2.43?<br><br> ~2 1/100<br> ~2 1/43<br> ~2 43/100<br> ~2 43/1000
    5·1 answer
  • ANSWER ASAP AND I WILL MARK YOU BRANLIEST. Tomas makes balloon sculptures at a circus. In 96 minutes, he uses 160 balloons to ma
    6·1 answer
  • A book has 244 pages. Theo has read 81 pages so far. About what percent
    9·2 answers
  • (04.01)Which unit rate is the lowest price per ounce?
    13·1 answer
  • I need help asap!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • The density d of a substance is given by the formula d = m/v, where m is its mass and V is its volume.
    9·2 answers
  • There are two bags containing only purple and red marbles.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!